
LT1011
Production
The LT1011 is a general purpose comparator with signi?cantly better input characteristics than the LM111. Although pin compatible with the LM111, it offers...
Datasheet
LT1011 on Analog.com
Hi Yong,
Parasitic capacitances may mis-trigger the comparator when the input voltage goes very near to the reference voltage.
To prevent it, you can try to implement hysteresis on your circuit. This is discussed on page 8 of the datasheet.
Best regards,
Sham